/Engine/Plugins/Experimental/Dataflow/Source/DataflowEditor/Public/Dataflow/DataflowSNode.h
Populate the widgets array with any overlay widgets to render
virtual [TArray](API\Runtime\Core\Containers\TArray)< [FOverlayWidgetInfo](API\Editor\GraphEditor\FOverlayWidgetInfo) > GetOverlayWidgets ( bool bSelected, const FVector2D & WidgetSize ) const